Two reasons to play Call of Duty: Black Ops 2 this weekend: Treyarch is hosting another double XP event, and Steam users get to enjoy the game for free.

Starting today, Friday, February 22, at 10 am PST until Monday, February 25, at 10 am PST, Treyarch will be hitting the double XP switch for Black Ops 2’s multiplayer on the Xbox 360, PlayStation 3, PC and Wii.

Steam users might want to head on over to the store to catch some free play time with Black Ops 2 on the PC. A special “free weekend” event is being held from now until this Sunday, February 24, at 1 am PST.

Remember, February 28 marks the day PlayStation 3 and PC users get a chance at at downloading Black Ops 2’s first DLC, Revolution. Check out our review here.